X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fvideo_examiner.h;h=66d3ae5b57ea2b056a9678ac737b660de38ee0c9;hb=4a4725e41bf4070969223f9c40885063c50e61d0;hp=d4897213beb69634d1b777b955e4d0b9efa9a44b;hpb=854f2e5bbb7ffb9758b823af87034033033f3cb8;p=dcpomatic.git

diff --git a/src/lib/video_examiner.h b/src/lib/video_examiner.h
index d4897213b..66d3ae5b5 100644
--- a/src/lib/video_examiner.h
+++ b/src/lib/video_examiner.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,15 +17,25 @@
 
 */
 
-#include <dcp/types.h>
+/** @file  src/lib/video_examiner.h
+ *  @brief VideoExaminer class.
+ */
+
 #include "types.h"
 #include "video_content.h"
+#include <dcp/types.h>
 
+/** @class VideoExaminer
+ *  @brief Parent for classes which examine video sources and obtain information about them.
+ */
 class VideoExaminer
 {
 public:
 	virtual ~VideoExaminer () {}
-	virtual float video_frame_rate () const = 0;
+	virtual boost::optional<double> video_frame_rate () const = 0;
 	virtual dcp::Size video_size () const = 0;
-	virtual ContentTime video_length () const = 0;
+	virtual Frame video_length () const = 0;
+	virtual boost::optional<double> sample_aspect_ratio () const {
+		return boost::optional<double> ();
+	}
 };